Acid-catalysed isomerization of ethyl 5-Hydroxy-7a-methyl-1-oxo-2, 6, 7, 7a tetrahydro-1H-indene-4-carboxylate
DJ Collins, CW Tomkins
Index: Collins,D.J.; Tomkins,C.W. Australian Journal of Chemistry, 1977 , vol. 30, p. 443 - 450
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Citation Number: 14
Abstract
Abstract Treatment of a chloroform solution of ethyl 5-hydroxy-7a-methyl-1-oxo-2, 6, 7, 7a- tetrahydro-1H-indene-4-carboxylate with dry hydrogen chloride at room temperature gave ethyl 5-hydroxy-7a-methyl-1-oxo-cis-3a, 6, 7, 7a-tetrahydro-1H-indene-4-carboxylate, and the corresponding trans-hydrindan in the ratio 9: 1. Hydrogenation of this mixture gave ethyl 5-hydroxy-7a-methyl-1-oxo-cis-3a, 6, 7, 7a-tetrahydroindan-4-carboxylate, and ethyl t-7a- ...
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